Calcium carbide (cac2) is an unusual substance that contains a carbon anion (c2 2- ). the reaction with water involves several steps that occur in rapid succession. cac2 is a salt (notice that its name is similar to sodium chloride). when a salt dissolves in water, ions leave the crystal lattice and enter the aqueous (aq) solution.
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Chemistry, 21.06.2019 15:00, asims13
Which element in the third period would you expect to have the larger atomic radius, sodium (na) or sulfur (s)? a. sodium, because it has a higher effective nuclear charge attracting electrons in fewer energy levels. b. sodium, because it has fewer protons attracting electrons in the same energy levels. c. sulfur, because it has more protons attracting electrons in more energy levels. d. sulfur, because it has a higher effective nuclear charge attracting electrons in the same energy levels.
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Chemistry, 22.06.2019 16:00, matt16913
Which of the following is the correct definition of chemical energy? a. energy an object has because of its motion or position b. energy resulting from the flow of charged particles, such as electrons or ions c. energy produced from the splitting of atoms d. energy stored in chemical bonds of molecules
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Chemistry, 22.06.2019 23:30, bxymichelle
With the largest atoms and the smallest number of valence electrons and with the smallest atoms and the greatest number of valence electrons are the most reactive. a. nonmetals; metals b. nonmetals; transition elements c. transition elements; metals d. metals; nonmetals
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Calcium carbide (cac2) is an unusual substance that contains a carbon anion (c2 2- ). the reaction w...
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